Are you still breathing???? Yes?? Then you're not too old. I have a dear friend that started nursing school at 50 and was very glad she did. You will probably not have as hard of a time adjusting because you have 'life experience' and know that everything is not always 'perfect'....a common problem with a lot of really young nurses...it takes a lot of living to figure out how to adjust to constant changes and pressure...and that is what nursing is all about...Good Luck